gistfile1.txt

~> cat test.swift
print((0, 1) == (0, 1))
/tmp
~> sudo xcode-select -s /Applications/Xcode.app/Contents/Developer/
/tmp
~> swift test.swift
test.swift:1:14: error: binary operator '==' cannot be applied to two '(Int, Int)' operands
print((0, 1) == (0, 1))
      ~~~~~~ ^  ~~~~~~
/tmp
~> sudo xcode-select -s /Applications/Xcode-beta.app/Contents/Developer/
/tmp
~> swift test.swift
true
/tmp
~> cat test2.swift
#if swift(>=2.2)
    print("2.2 yo")
#endif
/tmp
~> swift test2.swift
test2.swift:1:5: error: unexpected target configuration expression (expected 'os' or 'arch')
#if swift(>=2.2)
    ^
/tmp